MX2012000259A - Oxidative stress resistant bifidobacteria. - Google Patents
Oxidative stress resistant bifidobacteria.Info
- Publication number
- MX2012000259A MX2012000259A MX2012000259A MX2012000259A MX2012000259A MX 2012000259 A MX2012000259 A MX 2012000259A MX 2012000259 A MX2012000259 A MX 2012000259A MX 2012000259 A MX2012000259 A MX 2012000259A MX 2012000259 A MX2012000259 A MX 2012000259A
- Authority
- MX
- Mexico
- Prior art keywords
- composition
- ncc2916
- food
- bifidobacteria
- bifidobacterium
- Prior art date
Links
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- A—HUMAN NECESSITIES
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- A23V2400/51—Bifidobacterium
- A23V2400/533—Longum
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
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Abstract
The present invention relates in general to the field of Bifidobacteria. In particular the present invention relates to the field of Bifidobacteria with an improved resistance to oxidative stress. The inventors have identified a Bifidobacterium that exhibits for example an improved H2O2 - resistance.
Description
BIFIDOBACTERIAS RESISTANT TO OXIDATIVE STRESS
DESCRIPTIVE MEMORY
In general, the present invention relates to the field of Bifidobacteria. In particular, the present invention relates to the field of Bifidobacteria with a better resistance to H202.
Prebiotic bacteria are selected for their health-promoting properties. As probiotics exercise their benefit as living organisms ((Guarner, F. and
G. J. Schaafsma. 1998. "Probiotics". Int.J.Food Microbiol. 39: 237-238), bacteria should survive in the conditions of the gastrointestinal tract. In industrial applications, large-scale production requires the additional ability of probiotics to tolerate food processing and storage. These production steps are characterized by different stresses that compromise a good survival of the bacteria. Among them, high or low temperature, high osmotic pressure, oxidation and humidity are likely key factors.
Some species of probiotic bacteria are known in particular for having a low tolerance to temperature, oxygen or spray drying. Important examples of said probiotics with low tolerance to stress are, for example, the Bifidobacteria, in particular, Bifidobacterium longum (Simpson, PJ, Stanton C., Fitzgerald GF, and RP Ross, 2005. "Intrinsic tolerance of Bifidobacterium species to heat and oxygen. and survival following spray drying and storage "[Intrinsic tolerance of Bifidobacteria species to heat and oxygen and survival after spray drying and storage] J.Appl.Microbiol.99: 493-501).
In particular, the anaerobic nature of bifidobacteria requires adapted fermentation conditions to facilitate large-scale production and additional effort is usually required to preserve cell viability during processing and storage.
Extreme differences in oxygen tolerance occur throughout the bacterial kingdom. Aerobic bacteria have created evolved defense systems to protect against damage caused by reactive oxygen species (ROS). However, even for these bacteria, oxygen can be toxic if such defense systems deteriorate. Primarily, three different reactive oxygen species (ROS) can be formed, depending on whether oxygen accepts one, two or three electrons to form (i) superoxide radicals (O2), (ii) hydrogen peroxide (H202) or (iii) hydroxyl radicals (OH), respectively (Imlay, JA, 2002, Advances in Microbial Physiology, Vol 46 46: 1 1 -153.). H202 causes DNA damage and protein oxidation. Bacteria can use various enzymes to eliminate these ROS, including catalases, NADH peroxidases and reductases.
To address this problem and increase the survival rate of prebiotics during food production, currently different approaches are used, including microencapsulation, addition of protective agents, oxygen-impermeable packaging and improvement of cultivation and processing conditions.
However, these approaches are complex and laborious to carry out and often require the addition of additional components that may have side effects and that may be undesirable in the final product.
Accordingly, the aim of the present invention was to overcome the problems of the prior art and to provide the art with probiotic Bifidobacteria that exhibit better resistance against oxidative stress and / or better oxygen tolerance and with a method to increase the number of viable probiotics. in a composition.
This object of the present invention is solved by a Bifidobacterium according to Claim 1, by a composition in accordance with Claim 2 and by the use according to Claim 8.
The present inventors have applied methods of natural selection and have searched for strains of Bifidobacteria with greater resistance to reactive oxygen species, such as for example H202.
A typical probiotic bacteria is Bifidobacterium longum.
The present inventors were able to identify and isolate Bifidobacterium longum NCC2916 which allowed achieving the objective of the present invention. Bifidobacterium longum NCC2916 - a derivative of Bifidobacterium longum NCC2705 obtained by natural selection - surprisingly exhibits a better tolerance to oxygen compared to the Bifidobacteria of the prior art. The strains obtained by natural selection have the advantage that they solve the objective of the present invention without having been modified by means of genetic technology.
In particular, strain B. longum NCC2916 shows greater resistance to
H202
Accordingly, one embodiment of the present invention is Bifidobacterium longum NCC2916.
Bifidobacterium longum NCC2916 has been deposited under the Budapest treaty with the CNCM; Pasteur Institute, 25; Rué du Docteur Roux; F-75724 Paris Cedex 15 as CNCM I-4053.
Bifidobacterium longum NCC2705 has been deposited under the Budapest treaty with the CNCM; Pasteur Institute, 25; Rué du Docteur Roux; F-75724 Paris Cedex 15 as CNCM 1-2618.
The present invention also relates to a composition comprising Bifidobacterium longum NCC2916.
For the purpose of the present invention, a composition is considered to contain Bifidobacterium longum NCC29 6 if it contains Bifidobacterium longum NCC2916 cells - alive or non-replicable, any bacterial fraction of Bifidobacterium longum NCC2916, any fraction of a culture comprising Bifidobacterium
NCC2916 longum, and / or the culture medium or a part thereof that was used to grow Bifidobacterium longum NCC2916.
Probiotic Bifidobacteria, when administered, confer a health benefit to the host. The health benefits of Bifidobacteria are manifold and include aid in digestion, association with a lower incidence of allergies, prevention of some forms of tumor growth and weight management. Accordingly, the composition and / or Bifidobacterium longum NCC2916 of the present invention can be used to confer these health benefits to an individual.
The composition of the present invention can be any composition but preferably it is a food product, an animal food product or a pharmaceutical composition. For example, the composition can be a nutritional composition, a nutraceutical, a beverage, a food supplement or a medicine.
Preferably, the composition is intended for human, pet or livestock, while the pets or livestock may be selected from the group consisting of dogs, cats, guinea pigs, rabbits, pigs, cattle, sheep, goats, horses and / or poultry. .
The composition may comprise at least one source of carbohydrates, at least one source of lipids and / or at least one source of proteins.
As a protein source, any suitable food protein can be used, for example, animal proteins (such as milk proteins, meat proteins and egg proteins); vegetable proteins (such as soy proteins, wheat proteins, rice proteins and pea or pea protein); mixtures of free amino acids; or combinations thereof. Of particular preference are milk proteins such as casein and whey and soy proteins. The proteins may be intact or hydrolyzed or a mixture of intact and hydrolyzed proteins. It may be of interest to supply partially hydrolyzed proteins (degree of hydrolysis between 2 and 20%), for example, for animals believed to be at risk of developing allergy to cow's milk. If hydrolyzed proteins are required, the hydrolysis process can be carried out as desired and as is known in the art. For example, a whey protein hydrolyzate can be prepared by enzymatically hydrolyzing the serum fraction in one or more steps. If the whey fraction used as the starting material is essentially free of lactose, it is observed that the protein undergoes much less lysine blockage during the hydrolysis process. The above allows the degree of lysine blocking to be reduced from about 15% by weight of total lysine to less than about 10% by weight of lysine; for example, about 7% by weight of lysine, which greatly improves the nutritional quality of the protein source.
If the composition includes a source of fat, preferably, the source of fat provides from 5% to 40% of the energy of the composition; for example from 20% to 30% of the energy. A suitable fat profile can be obtained by using a mixture of canola oil, corn oil, and sunflower oil with high oleic acid content.
Preferably, the carbohydrate source provides 40% to 80% of the energy of the composition. Any suitable carbohydrate can be used, for example,
sucrose, lactose, glucose, fructose, corn syrup solids, maltodextrins and mixtures thereof.
In addition, dietary fiber can be added if desired. The dietary fiber passes through the small intestine undigested by enzymes and functions as a natural volume and laxative agent. The food fiber may be soluble or insoluble and in general, a mixture of the two types is preferred. Suitable sources of dietary fiber include soybeans, peas, oats, pectins, guar gum, gum arabic, fructooligosaccharides, galactooligosaccharides, sialyllactose and oligosaccharides derived from animal milks. A preferred fiber mixture is a mixture of inulin with shorter chain fructooligosaccharides. Preferably, if the fiber is present, the fiber content is between 2 and 40 g / l of the composition as consumed, more preferably between 4 and 10 g / l.
The composition may also include minerals and micronutrients such as trace elements and vitamins in accordance with the recommendations of government agencies such as the USRDA.
For example, the composition may contain one or more of the following micronutrients per day: calcium, magnesium, phosphorus, iron, zinc, copper, iodine, selenium, vitamin C, vitamin B1, vitamin B6, vitamin B2, niacin, vitamin B12 , folic acid, biotin, Vitamin D, Vitamin E.
One or more food grade emulsifiers can be incorporated into the composition if desired; for example, diacetyltartaric acid esters of mono and
diglycerides, lecithin and mono and diglycerides. Salts and similarly suitable stabilizers may be included.
The composition may be intended for oral, parenteral or topical administration. For purposes of the present invention, oral application includes enteral administration.
The composition may comprise at least one other type of other food grade bacteria. "Food-grade bacteria" means bacteria that are used and that are generally considered safe for use in food. The food grade bacteria can be selected from the group consisting of lactic acid bacteria and / or bifidobacteria. Preferably they are probiotic bacteria. "Probiotic bacteria" means microbial cell preparations or components of microbial cells with beneficial effect on the health or well-being of the host. (Salminen S, Ouwehand A. Benno Y. et al "Probiotics: how should they be defined [Probiotics: how should they be defined] '
Trends Food Sci. Technol. 1999: 10 107-10).
The composition may also contain at least one prebiotic. "Prebiotic" means food substances intended to promote the growth of probiotic bacteria in the intestines. Prebiotics are defined for example by Glenn R.
Gibson and Marcel B. Roberfroid, Dietary Modulation of the Human Colonic Microbiota [Food Modulation of the Human Colonic Microbiota: Introducing the Concept of Prebiotics], J. Nutr. 1995 125: 1401-1412. The prebiotic can be selected from the group consisting of oligosaccharides and optionally, contains fructose, galactose, mannose, soy and / or inulin; and / or food fibers.
The composition of the present invention may also contain protective hydrocolloids (such as gums, proteins, modified starches), binders, film-forming agents, encapsulating agents / materials, wall / layer materials., matrix compounds, coatings, emulsifiers, surface active agents, solubilizing agents, (oils, fats, waxes, lecithins, etc.), adsorbents, vehicles, filling agents, co-compounds, dispersing agents, wetting agents, aid agents for processing (solvents), fluidizing agents, taste masking agents, agents for the increase of specific weight, gelling agents, gel forming agents, antioxidants and antimicrobials. The composition may further include pharmaceutically conventional additives and adjuvants, excipients and diluents, including, but not limited to, water, gelatin of any origin, vegetable gums, lignin sulfonate, talc, sugars, starch, gum arabic, vegetable oils, polyalkylene glycols, flavoring agents, preservatives, stabilizers, emulsifying agents, buffer solutions, lubricants, colorants, wetting agents, fillers and the like. In all cases, said additional components will be selected considering their relevance to the desired recipient.
The composition of the present invention can contain any number of Bifidobacteria according to the present invention. In principle, only one
Bifidobacteria that reaches the intestine and that can generate a colony is enough to generate a beneficial effect on the host.
It is clear to those skilled in the art that an ideal dose will depend on the individual to be treated, for example, their health condition, gender, age or weight. By
Consequently, the dose to be used will ideally vary but can be easily determined by those skilled in the art.
However, it is generally preferred if the composition of the present invention comprises between 03 and 1010 cfu and / or between 103 and 1010 cells of Bifidobacterium longum NCC2916 per daily dose. It may further comprise between 103 and 1012 cfu and / or between 103 and 1012 cells of Bifidobacterium longum NCC2916 per g of the dry weight of the composition.
The present invention further relates to the use of a Bifidobacterium longum NCC2916 to increase the number of live probiotic bacteria, for example Bifidobacterium longum, in a product. Similarly, the present invention further relates to the use of the composition of the present invention to increase the number of live probiotic bacteria, for example Bifidobacterium longum, in a product.
The uses of the present invention also serve to increase the number of probiotic bacteria, in particular of Bifidobacteria, in a product after exposure to stress for probiotic bacteria.
The stress may be an exposure to oxidative species, for example, in a concentration of 200 ppm, for example, for 30 seconds to 2 hours.
Oxidative species are not particularly limited. Very common reactive oxygen species include, for example · 02 ', the superoxide anion; H202,
hydrogen peroxide; · ??, the hydroxyl radical; ROOH, organic hydroperoxide; RO, alkoxy radicals; ROO », peroxy radicals; HOCI, hypochlorous acid; OONO-, peroxynitrite; I ??·. Preferably, the reactive oxygen species are selected from the group consisting of H202, · 02 ', · ?? , and combinations thereof.
Those skilled in the art will understand that they can freely combine all of the features of the present invention described herein without departing from the scope of the invention as disclosed. In particular, the features described for the use of the present invention can be applied to the composition of the present invention and vice versa.
The additional features and advantages of the present invention are apparent from the following Examples and Figures. or
Figure 1 shows viable cell counts of cultures of 16 h overnight at 4 h in 200 ppm H202. NCC2916 (white bars) and wild type NCC2705 (black bars). The p values refer to a test t with the wild type Example 1:
Identification and isolation of NCC2916
Approximately 1011 cfu of NCC2705 were resuspended in 10 ml of 40 ppm of H202 for 80 minutes. A volume of 1 ml of cell suspension was subsequently plated on MRS agar. A visible colony within 48 h was subcultured 2 times overnight (16 h) in MRS broth and frozen at -80 ° C for further analysis.
To compare the resistance to H202 of the wild-type cells and the new variant NCC2916, frozen samples of cells (overnight cultures, 16 h) were thawed from wild-type and variant cultures with the same densities and aliquots of 1 were centrifuged. mi (6? 00 g, 2 min at room temperature). The pellet was resuspended in a solution in 10 ml of 200 ppm H202. After 4 h, the cell suspension was diluted in a buffer solution and plated. Colony counts were measured after 48 h. The test was performed in triplicate (Fig 1). The tolerance of NCC2916 to H202 remained stable for at least 70 generations.
Claims (10)
1 . Bifidobacterium longum NCC2916.
2. A composition characterized in that it comprises a Bifidobacteria according to Claim 1.
3. The composition according to Claim 2, characterized in that the composition is a food product, a food product for animals or a pharmaceutical composition.
4. The composition according to one of Claims 2-3, characterized in that the composition also contains at least one prebiotic.
5. The composition according to claim 4, characterized in that the prebiotic is selected from the group consisting of oligosaccharides and optionally, contains fructose, galactose, mannose, soy and / or inulin; and / or food fibers.
6. The composition according to one of Claims 1 - 5, characterized in that it comprises between 103 and 1010 cfu and / or between 103 and 1010 cells of Bifidobacterium NCC2916 per daily dose.
7. The composition according to one of Claims 1 - 5, characterized in that it comprises between 103 and 1012 cfu and / or between 103 and 1012 of Bifidobacterium NCC2916 cells per g of the dry weight of the food composition.
8. The use of a Bifidobacterium according to Claim 1 or of a composition according to Claims 1 - 7, characterized in that it serves to increase the number of live probiotic bacteria in a product.
9. The use according to claim 8, characterized in that it serves to increase the number of probiotic bacteria in a product after exposure to stress for probiotic bacteria.
10. The use according to Claim 9, characterized in that the stress is an exposure to oxidative species, in a concentration of 200 ppm, by 30 seconds to 2 hours. eleven . The use according to Claim 10, characterized in that the oxidative species is selected from the group consisting of H202, · 02 ', OH', and combinations thereof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP09164541A EP2270134A1 (en) | 2009-07-03 | 2009-07-03 | Oxidative stress resistant Bifidobacteria |
PCT/EP2010/059530 WO2011000965A1 (en) | 2009-07-03 | 2010-07-05 | Oxidative stress resistant bifidobacteria |
Publications (1)
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MX2012000259A true MX2012000259A (en) | 2012-01-25 |
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MX2012000259A MX2012000259A (en) | 2009-07-03 | 2010-07-05 | Oxidative stress resistant bifidobacteria. |
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US (1) | US20120177607A1 (en) |
EP (2) | EP2270134A1 (en) |
JP (1) | JP2012531192A (en) |
CN (1) | CN102741392A (en) |
AU (1) | AU2010267924A1 (en) |
BR (1) | BR112012000102A2 (en) |
CL (1) | CL2012000012A1 (en) |
MX (1) | MX2012000259A (en) |
SG (1) | SG176953A1 (en) |
WO (1) | WO2011000965A1 (en) |
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AU2016315268B2 (en) * | 2015-08-31 | 2022-12-22 | Société des Produits Nestlé S.A. | Methods and compositions using Bifidobacterium longum to modulate emotional reactivity and treat or prevent sub-clinical mood disturbances |
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JPS53121949A (en) * | 1977-03-31 | 1978-10-24 | Yakult Honsha Kk | Production of drink and food containing bifidobacterium cells |
JPS61185182A (en) * | 1985-02-14 | 1986-08-18 | Meiji Milk Prod Co Ltd | Mutant strain of bifidus and cultivation composition thereof |
EP1227152A1 (en) * | 2001-01-30 | 2002-07-31 | Société des Produits Nestlé S.A. | Bacterial strain and genome of bifidobacterium |
ITBO20020564A1 (en) * | 2002-09-06 | 2004-03-07 | Alfa Wassermann Spa | BIFIDOBACTERIA AND PREPARATIONS THAT CONTAIN THEM. |
CN101314763B (en) * | 2007-06-01 | 2011-06-08 | 统一企业(中国)投资有限公司 | Short bifidobacteria with functions of anti-gastrointestinal tract pathogen, oxidation resistance and blood pressure reduction and its uses |
-
2009
- 2009-07-03 EP EP09164541A patent/EP2270134A1/en not_active Withdrawn
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2010
- 2010-07-05 EP EP10730770A patent/EP2449088A1/en not_active Withdrawn
- 2010-07-05 MX MX2012000259A patent/MX2012000259A/en not_active Application Discontinuation
- 2010-07-05 JP JP2012516798A patent/JP2012531192A/en not_active Withdrawn
- 2010-07-05 US US13/382,096 patent/US20120177607A1/en not_active Abandoned
- 2010-07-05 CN CN2010800300612A patent/CN102741392A/en active Pending
- 2010-07-05 AU AU2010267924A patent/AU2010267924A1/en not_active Abandoned
- 2010-07-05 WO PCT/EP2010/059530 patent/WO2011000965A1/en active Application Filing
- 2010-07-05 BR BR112012000102A patent/BR112012000102A2/en not_active IP Right Cessation
- 2010-07-05 SG SG2011095064A patent/SG176953A1/en unknown
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JP2012531192A (en) | 2012-12-10 |
EP2270134A1 (en) | 2011-01-05 |
AU2010267924A1 (en) | 2012-02-02 |
EP2449088A1 (en) | 2012-05-09 |
CL2012000012A1 (en) | 2012-10-12 |
WO2011000965A1 (en) | 2011-01-06 |
SG176953A1 (en) | 2012-02-28 |
CN102741392A (en) | 2012-10-17 |
US20120177607A1 (en) | 2012-07-12 |
BR112012000102A2 (en) | 2016-08-09 |
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